1244432423 has 16 divisors (see below), whose sum is σ = 1355429376. Its totient is φ = 1135695360.

The previous prime is 1244432393. The next prime is 1244432429. The reversal of 1244432423 is 3242344421.

It is a cyclic number.

It is not a de Polignac number, because 1244432423 - 2¹² = 1244428327 is a prime.

It is a super-2 number, since 2×1244432423² = 3097224110827301858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244432429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 428111 + ... + 431007.

It is an arithmetic number, because the mean of its divisors is an integer number (84714336).

Almost surely, 2^1244432423 is an apocalyptic number.

1244432423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1244432423 is a deficient number, since it is larger than the sum of its proper divisors (110996953).

1244432423 is a wasteful number, since it uses less digits than its factorization.

1244432423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3274.

The product of its digits is 18432, while the sum is 29.

The square root of 1244432423 is about 35276.5137591571. The cubic root of 1244432423 is about 1075.6156338130.

Adding to 1244432423 its reverse (3242344421), we get a palindrome (4486776844).

The spelling of 1244432423 in words is "one billion, two hundred forty-four million, four hundred thirty-two thousand, four hundred twenty-three".